var $ = require('yoho-jquery'),
    tip = require('../plugin/tip'),
    Swiper = require('yoho-swiper'),
    loading = require('../plugin/loading'),
    debounce = require('lodash/debounce'),
    lazyLoad = require('yoho-jquery-lazyload');

var plusstar = {},
    $footer = $('#yoho-footer');

var windowHeight = $(window).height();
var scrollFn,
    scrollTop,
    RECPOSE,
    CID;

require('../common');

plusstar = {
    common: {
        codeDefault: '',
        page: 1,
        pagesize: 20,
        productSkns: []
    },
    init: function() {
        var that = this,
            $liDom,
            $tabUlDom;

        $tabUlDom = $('.plusstar-page .tab-nav ul');

        // 重置tab code位置
        if (window.localStorage) {
            $tabUlDom.find('li').each(function() {
                localStorage.setItem($(this).data('code'), 0);
            });
        }

        $tabUlDom.find('li').css({
            width: 100 / $tabUlDom.find('li').length + '%'
        });

        // 事情委托机制
        $tabUlDom.bind('click', function(event) {
            $liDom = $(event.target).closest('li');

            if ($liDom.hasClass('focus')) {
                return true;
            }

            $(this).find('li').removeClass('focus');
            $liDom.addClass('focus');
            that.ParentLiDom = $liDom;// 保留当前tab先中的对象
            that.tabNav($liDom.data('code'));

            // 点击潮流优选上方的TAB按钮时
            if (window._yas && window._yas.sendCustomInfo) {
                window._yas.sendCustomInfo({
                    op: 'YB_FASHION_HOME_L',
                    param: JSON.stringify({
                        C_ID: CID,
                        TAB_ID: $liDom.index() + 1
                    })
                }, true);
            }
        });

        // start -- 默认选中
        $liDom = $tabUlDom.find('li.focus');
        if ($liDom.length <= 0) {
            // 默认第一个
            $liDom = $('.plusstar-page .tab-nav ul li:eq(0)');
        }
        $tabUlDom.find('li').removeClass('focus');
        $liDom.addClass('focus');
        that.tabNav($liDom.data('code'));

        // ent -- 默认选中
        that.ParentLiDom = $liDom;// 保留当前tab先中的对象
        setTimeout(function() {
            that._yas();
        }, 1000);
    },
    _yas: function() {
        // http://redmine.yoho.cn/issues/12224
        var that = this;

        if (!window._yas || !window._yas.sendCustomInfo) {
            return false;
        }

        RECPOSE = that.ParentLiDom.index() !== 0 ? 100015 : 100014;
        $('.plusstar-resources').bind('click', function(event) {
            var $dom, $domA, index;

            if ($(event.target).closest('.good-info').length > 0) {
                // 商品单击埋点
                $dom = $(event.target).closest('.good-info');
                index = $dom.index() + 1;
                window.givePoint({
                    REC_POSE: RECPOSE,
                    PRD_ID: $dom.data('id'),
                    ORDER_CODE: '',
                    PRD_NUM: index % that.common.pagesize === 0 ? that.common.pagesize : index % that.common.pagesize,
                    ACTION_ID: 1,
                    page_num: Math.ceil(index / that.common.pagesize)
                });
            } else if ($(event.target).closest('.banner-top').length > 0) {
                // 头部banner楼层埋点
                $dom = $(event.target).closest('li');
                index = $dom.index() + 1;
                window._yas.sendCustomInfo({
                    op: 'YB_FASHION_FLR_C',
                    param: JSON.stringify({
                        C_ID: CID,
                        TAB_ID: that.ParentLiDom.index() + 1,
                        F_ID: $dom.closest('ul').data('id'),
                        F_NAME: '焦点图',
                        F_URL: $dom.find('a').attr('href'),
                        F_INDEX: 1,
                        I_INDEX: index
                    })
                }, true);
            } else if ($(event.target).closest('.speck-title-image a').length > 0) {
                // 各楼层埋点
                $dom = $(event.target).closest('.speck-title-image');
                $domA = $(event.target).closest('.speck-title-image a');

                window._yas.sendCustomInfo({
                    op: 'YB_FASHION_FLR_C',
                    param: JSON.stringify({
                        C_ID: CID,
                        TAB_ID: that.ParentLiDom.index() + 1,
                        F_ID: $dom.data('fid'),
                        F_NAME: $dom.data('name'),
                        F_URL: $domA.attr('href'),
                        F_INDEX: $dom.index() + 1,
                        I_INDEX: $domA.hasClass('more') ? 0 : ($domA.index() + 1)
                    })
                }, true);
            }
        });

        // 潮流优选首页加载时
        window._yas.sendCustomInfo({
            op: 'YB_FASHION_HOME_L',
            param: JSON.stringify({
                C_ID: CID,
                TAB_ID: that.ParentLiDom.index() + 1
            })
        }, true);

    },
    tabNav: function(code) {
        var that = this;

        this.common.codeDefault = code;// 记住最后一次的tab code
        this.common.page = 1;// 商品列表从第一页开始

        $.ajax({
            type: 'GET',
            url: '/guang/plusstar/resources-template',
            data: {
                code: code,
                app_version: window.queryString.app_version || window.queryString.appVersion
            },
            dataType: 'html',
            success: function(data) {
                var productSkns = '';

                $('.plusstar-resources').html(data);

                if (data === '') {
                    tip.show('没有更多内容了');
                    return true;
                }

                that.resInit();

                lazyLoad($('img.lazy'));

                // 处理左右滑动，未加载的图片
                setTimeout(function() {
                    $('img.lazy').each(function() {
                        if ($(this).attr('src') !== $(this).data('original')) {
                            $(this).attr('src', $(this).data('original'));
                        }
                    });
                }, 40);

                // 设置滚动条的位置
                if (window.localStorage) {
                    $(document).scrollTop(localStorage.getItem(code) || 0);
                }

                productSkns = $(data).find('.product-skns').val();

                if (productSkns) {
                    that.common.productSkns = productSkns.split(',');
                }
            },
            error: function() {
                tip.show('网络断开连接了~');
            }
        });
    },
    resInit: function() {
        // 头部banner轮播
        if ($('.banner-swiper').find('li').size() > 1) {
            new Swiper('.banner-swiper', {
                lazyLoading: true,
                lazyLoadingInPrevNext: true,
                loop: true,
                autoplay: 3000,
                autoplayDisableOnInteraction: false,
                paginationClickable: true,
                slideElement: 'li',
                pagination: '.banner-top .pagination-inner'
            });
        }
    },
    goodsList: function() {
        var that = this,
            skn = [],
            len = 0;

        len = (that.common.page - 1) * that.common.pagesize;
        skn = that.common.productSkns.slice(len, len + that.common.pagesize);

        if (skn.length < 1) {
            return false;
        }

        loading.showLoadingMask();

        window.givePoint({
            REC_POSE: RECPOSE,
            PRD_ID: skn.join(','),
            ORDER_CODE: '',
            PRD_NUM: skn.length,
            ACTION_ID: 0,
            page_num: that.common.page
        });

        that.common.page++;
        $.ajax({
            type: 'POST',
            url: '/guang/plusstar/resources-goodsList',
            timeout: 5000,
            data: {
                productSkn: skn.join(','),
                app_version: window.queryString.app_version || window.queryString.appVersion,
                yh_channel: that.ParentLiDom.index() + 1
            },
            dataType: 'html',
            success: function(data) {
                loading.hideLoadingMask();

                if (data === '') {
                    return true;
                }

                $('.plusstar-resources .goods').append(data);

                lazyLoad($('.plusstar-resources .goods').find('img.lazy:not([src])'));
            },
            error: function() {
                tip.show('网络断开连接了~');
                loading.hideLoadingMask();
            }
        });
    }
};

scrollFn = debounce(function() {
    scrollTop = $(document).scrollTop();

    // 当scroll到最后一列商品的高度后继续请求下一页数据
    if (400 + scrollTop >= $(document).height() - windowHeight) {
        plusstar.goodsList();
    }

    if (window.localStorage) {
        localStorage.setItem(plusstar.common.codeDefault, $(this).scrollTop());
    }

}, 200);

$(function() {
    // 男:1，女:2，潮童:3，创意生活:4
    CID = window._ChannelVary[window.cookie('_Channel')] || 1;

    if (!(window.queryString.app_version || window.queryString.appVersion)) {
        $('.tab-nav').css({
            position: 'relative'
        });

        $footer.css({
            'max-width': '650px'
        }).before(
            '<div style="height: ' + parseInt($footer.css('height'), 0) + 'px"></div>'
        );
    }

    plusstar.init();

    // 滚动翻页
    $(window).scroll(function() {
        scrollFn();
    });
});